Resin dispersion

Abstract

Disclosed is a resin dispersion, a method for production thereof and a product. According to the invention, a resin dispersion may b prepared, during the processing of which the release of polluting materials may be avoided, wherein the resin dispersion contains (I) 30 to 100 wt. % epoxide resin, 0-70 wt. % Novolak resin based on the mass of both resin components, (II) 4 to 18 wt. %, based on the total weight, of a co-dispersing agent made from ricin oil ethoxylate, hydrated ricin oil ethoxylate, alkylphenol ethoxylate, fatty alcohol ethoxylate, oleic acid ethoxylate, oxoalcohol ethoxylate, fatty alcohol alkoxylate and/or polyvinyl alcohol and (III), optionally, 0 to 20 wt. %, based on the total mass, of further conventional adjuncts.

1 . An aqueous resin dispersion comprising:
 (I) 30 to 100 weight percent of epoxy resin and 0-70 weight percent of novolak resin based on the mass of both resin components and also   (II) 4 to 18 weight percent based on the overall mass of a codispersant based on castor oil ethoxylate, hydrogenated castor oil ethoxylate, alkylphenol ethoxylate, fatty alcohol ethoxylate, oleic acid ethoxylate, oxo process alcohol ethoxylate, fatty alcohol alkoxylate and/or polyvinyl alcohol.   
     
     
         2 . The aqueous resin dispersion of  claim 1  comprising:
 (I) 30 to 80 weight percent of epoxy resin and 70-20 weight percent of novolak resin based on the mass of both resin components and also   (II) 4 to 18 weight percent based on the overall mass of a codispersant based on castor oil ethoxylate, hydrogenated castor oil ethoxylate, alkylphenol ethoxylate, fatty alcohol ethoxylate, oleic acid ethoxylate, oxo process alcohol ethoxylate, fatty alcohol alkoxylate and/or polyvinyl alcohol.   
     
     
         3 . The resin dispersion of  claim 1  wherein the epoxy resin melts at a temperature <90° C. 
     
     
         4 . The resin dispersion of  claim 1  wherein the novolak resin is a phenol-formaldehyde resin prepared using a phenol:formaldehyde ratio in the range from 1:0.4 to 1:0.8. 
     
     
         5 . The resin dispersion of  claim 1  wherein the codispersant is present in an amount in the range from 3% to 10% by weight based on the overall mass. 
     
     
         6 . The resin dispersion of  claim 1  further comprising a a stabilizer. 
     
     
         7 . The resin dispersion of  claim 1  further comprising one or more of a catalyst, dyes or wetting agents. 
     
     
         8 . A process for producing the aqueous resin dispersion of  claim 1  comprising:
 a. admixing the codispersant to the constituent (I) present essentially as a melt, and   b. admixing water at temperatures <100° C. to the mixture obtained in step a).   
     
     
         9 . The process of  claim 8  wherein a stabilizer is added in step b). 
     
     
         10 . The process of  claim 8  wherein after obtaining the mixture in step b) the resin dispersion is admixed with on or more of catalysts, dyes or wetting agents. 
     
     
         11 . A process for producing the aqueous resin dispersion of  claim 1  comprising admixing constituents (I) and (II) with by introducing shearing energy. 
     
     
         12 . A product having a crosslinked or uncrosslinked surficial layer produced by applying the resin dispersion according to  claim 1 . 
     
     
         13 . The use of the aqueous resin dispersion of  claim 1  for modifying textile, mineral, metallic or polymeric surfaces in the form of fibers, fibrous nonwoven webs, wovens, wools or smooth surfaces.